--- /dev/null
+Return-Path: <markwalters1009@gmail.com>\r
+X-Original-To: notmuch@notmuchmail.org\r
+Delivered-To: notmuch@notmuchmail.org\r
+Received: from localhost (localhost [127.0.0.1])\r
+ by olra.theworths.org (Postfix) with ESMTP id 17B55431FC0\r
+ for <notmuch@notmuchmail.org>; Fri, 9 May 2014 08:45:33 -0700 (PDT)\r
+X-Virus-Scanned: Debian amavisd-new at olra.theworths.org\r
+X-Spam-Flag: NO\r
+X-Spam-Score: 2.7\r
+X-Spam-Level: **\r
+X-Spam-Status: No, score=2.7 tagged_above=-999 required=5\r
+ tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1,\r
+ FREEMAIL_ENVFROM_END_DIGIT=1, FREEMAIL_FROM=0.001,\r
+ FREEMAIL_REPLY=2.499, RCVD_IN_DNSWL_LOW=-0.7] autolearn=disabled\r
+Received: from olra.theworths.org ([127.0.0.1])\r
+ by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024)\r
+ with ESMTP id G6j9lgmWUdXB for <notmuch@notmuchmail.org>;\r
+ Fri, 9 May 2014 08:45:28 -0700 (PDT)\r
+Received: from mail-we0-f177.google.com (mail-we0-f177.google.com\r
+ [74.125.82.177]) (using TLSv1 with cipher RC4-SHA (128/128 bits))\r
+ (No client certificate requested)\r
+ by olra.theworths.org (Postfix) with ESMTPS id AF99E431FBC\r
+ for <notmuch@notmuchmail.org>; Fri, 9 May 2014 08:45:28 -0700 (PDT)\r
+Received: by mail-we0-f177.google.com with SMTP id x48so4067733wes.22\r
+ for <notmuch@notmuchmail.org>; Fri, 09 May 2014 08:45:27 -0700 (PDT)\r
+DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;\r
+ h=from:to:cc:subject:date:message-id:in-reply-to:references;\r
+ bh=DKeJsncyKoPOaXvO/sY48v3dgxspZqg8sn31MDqzVvE=;\r
+ b=wE/zVhbHKEOvaZlReklvnVeA7Ecfq8vIGbLsuEHCOvLjLDMUE+vniTQ1nYFqSc3w5/\r
+ fUTOYF/QtFPajGb6V13Gz6L7JSwvZKjBpK+DzZcxforP3u4ml8ZqR5zI7rVPbMogc4w+\r
+ RQAHJ9rkVt087gCJt859fnXWerSgBNmxZ+B3VK3WQOGFWQRFTy+7oadlt79KwHDkLgYv\r
+ +XoLRkyTxK6Jz96z4GUjH7btVZxyiPrtDkrWUC9YKJCSj/RkZ843YzIF+7xSGavIQeQy\r
+ cap3B9j3rHCB/fSGCVCs4V0vuMCdnNdYMHu3YaLtAwOoWiMtZ1idiGKTlO/TarySzHUS\r
+ VI6A==\r
+X-Received: by 10.194.59.226 with SMTP id c2mr9152340wjr.6.1399650327498;\r
+ Fri, 09 May 2014 08:45:27 -0700 (PDT)\r
+Received: from localhost (5751dfa2.skybroadband.com. [87.81.223.162])\r
+ by mx.google.com with ESMTPSA id n5sm5731872wiz.1.2014.05.09.08.45.26\r
+ for <multiple recipients>\r
+ (version=TLSv1.2 cipher=RC4-SHA bits=128/128);\r
+ Fri, 09 May 2014 08:45:26 -0700 (PDT)\r
+From: Mark Walters <markwalters1009@gmail.com>\r
+To: notmuch@notmuchmail.org\r
+Subject: [RFC PATCH] emacs: show: mark messages unread if seen in buffer\r
+Date: Fri, 9 May 2014 16:45:20 +0100\r
+Message-Id: <1399650320-1382-1-git-send-email-markwalters1009@gmail.com>\r
+X-Mailer: git-send-email 1.7.10.4\r
+In-Reply-To: <1399594808-2815-3-git-send-email-markwalters1009@gmail.com>\r
+References: <1399594808-2815-3-git-send-email-markwalters1009@gmail.com>\r
+X-BeenThere: notmuch@notmuchmail.org\r
+X-Mailman-Version: 2.1.13\r
+Precedence: list\r
+List-Id: "Use and development of the notmuch mail system."\r
+ <notmuch.notmuchmail.org>\r
+List-Unsubscribe: <http://notmuchmail.org/mailman/options/notmuch>,\r
+ <mailto:notmuch-request@notmuchmail.org?subject=unsubscribe>\r
+List-Archive: <http://notmuchmail.org/pipermail/notmuch>\r
+List-Post: <mailto:notmuch@notmuchmail.org>\r
+List-Help: <mailto:notmuch-request@notmuchmail.org?subject=help>\r
+List-Subscribe: <http://notmuchmail.org/mailman/listinfo/notmuch>,\r
+ <mailto:notmuch-request@notmuchmail.org?subject=subscribe>\r
+X-List-Received-Date: Fri, 09 May 2014 15:45:33 -0000\r
+\r
+This adds a function that marks messages unread if they are "seen"\r
+that is a user configurable amount of them has been visible in the\r
+buffer.\r
+\r
+To use set notmuch-show-mark-read-function to #'notmuch-show-do-seen\r
+---\r
+\r
+This adds the functionality to do my previous mark unread logic (see\r
+id:1395777793-13297-1-git-send-email-markwalters1009@gmail.com) as an\r
+option. It applies on top of the parent series.\r
+\r
+This is not intended to be applied as is, but people can see whether\r
+they prefer this or the logic introduced in patch 2. I think we might\r
+as well include the patch 2 logic as an option regardless as some\r
+people will prefer it, and it is very small.\r
+\r
+This functionality could go in notmuch-show if many people prefer it,\r
+it could go in contrib if a rather small number like it, or it could\r
+just go on the wiki.\r
+\r
+Indeed, a user can have this functionality by loading a file with this\r
+diffs contents (doesn't need to be in the notmuch tree) and setting\r
+notmuch-show-mark-function.\r
+\r
+Best wishes\r
+\r
+Mark\r
+\r
+\r
+\r
+ emacs/notmuch-show.el | 67 +++++++++++++++++++++++++++++++++++++++++++++++++\r
+ 1 file changed, 67 insertions(+)\r
+\r
+diff --git a/emacs/notmuch-show.el b/emacs/notmuch-show.el\r
+index 2620f84..3f45830 100644\r
+--- a/emacs/notmuch-show.el\r
++++ b/emacs/notmuch-show.el\r
+@@ -1550,6 +1550,73 @@ (defun notmuch-show-mark-read (&optional unread)\r
+ (apply 'notmuch-show-tag-message\r
+ (notmuch-tag-change-list notmuch-show-mark-read-tags unread))))\r
+ \r
++(defcustom notmuch-show-seen-lines-needed 0.75\r
++ "Control which messages get marked seen.\r
++\r
++A message is marked seen if both the top of the message and a\r
++point far \"enough\" down in the message have each been visible\r
++in the buffer at some point. This parameter controls the\r
++definition of enough. Seeing the bottom of message is always\r
++deemed enough. Additionally, it is deemed enough if a point n\r
++lines into the message has been visible in the window where n is\r
++this variable if this variable is an integer and n is this\r
++variable times the height of the window if this variable is a\r
++float."\r
++ :type 'number\r
++ :group 'notmuch-show)\r
++\r
++(defun notmuch-show-update-seen (top-or-bottom)\r
++ "Update seen status of current message\r
++\r
++Mark that we have seen the TOP-OR-BOTTOM of current message."\r
++ (let ((current (notmuch-show-get-prop :seen)))\r
++ (unless (or (eq current 'both) (eq current top-or-bottom))\r
++ (if (not current)\r
++ (notmuch-show-set-prop :seen top-or-bottom)\r
++ (notmuch-show-set-prop :seen 'both)\r
++ (notmuch-show-mark-read)))))\r
++\r
++(defun notmuch-show-do-message-seen (start end)\r
++ "Update seen status for the current message.\r
++\r
++A message is seen if both the top and enough of the rest of the\r
++message have been visible in the buffer. Enough means either the\r
++bottom of the message or a point in the message more than\r
++LINES-NEEDED lines into the message. LINES-NEEDED is\r
++`notmuch-show-seen-lines-needed` if that is an integer and that\r
++times the current window height if it is a float."\r
++ (let* ((lines-needed (if (integerp notmuch-show-seen-lines-needed)\r
++ notmuch-show-seen-lines-needed\r
++ (truncate (* notmuch-show-seen-lines-needed (window-body-height)))))\r
++ (top (notmuch-show-message-top))\r
++ (bottom (notmuch-show-message-bottom)))\r
++ (when (notmuch-show-message-visible-p)\r
++ (when (>= top start)\r
++ (notmuch-show-update-seen 'top))\r
++ (when (or (<= bottom end)\r
++ (> (count-screen-lines top end) lines-needed))\r
++ (notmuch-show-update-seen 'bottom)))))\r
++\r
++(defun notmuch-show-do-seen (start end)\r
++ "Update seen status for all messages between start and end.\r
++\r
++We mark the top (bottom) of a message seen if the top (enough of\r
++the rest of the message) respectively have been visible in the\r
++buffer. See `notmuch-show-do-message-seen` for the definition of\r
++enough. When both the top and bottom have been seen we mark the\r
++message read."\r
++ (save-excursion\r
++ (goto-char start)\r
++ (notmuch-show-do-message-seen start end)\r
++ (while (and (< (notmuch-show-message-bottom) end)\r
++ (notmuch-show-goto-message-next))\r
++ (notmuch-show-do-message-seen start end))\r
++ ;; This is a work around because emacs gives weird answers for\r
++ ;; window-end if the buffer ends with invisible text.\r
++ (when (and (pos-visible-in-window-p (point-max))\r
++ (notmuch-show-message-visible-p))\r
++ (notmuch-show-update-seen 'bottom))))\r
++\r
+ (defun notmuch-show-seen-current-message (start end)\r
+ "Mark the current message read if it is open.\r
+ \r
+-- \r
+1.7.10.4\r
+\r